From 0d821154aaac085ba23bd602b684001b4c85b4a7 Mon Sep 17 00:00:00 2001
From: Minijackson <minijackson@riseup.net>
Date: Wed, 16 Jun 2021 23:03:45 +0200
Subject: vim: use lua generator for variables and LSP config

---
 common/vim.nix                   | 18 ++++++++----------
 usecases/desktop/development.nix | 39 ++++++++++++++++++++++++---------------
 2 files changed, 32 insertions(+), 25 deletions(-)

diff --git a/common/vim.nix b/common/vim.nix
index 850eaf3..83ac31b 100644
--- a/common/vim.nix
+++ b/common/vim.nix
@@ -5,6 +5,8 @@ inputs:
 let
   inherit (pkgs.unstable) vimPlugins wrapNeovim;
 
+  luaFormat = inputs.self.lib.generators.lua { };
+
   neovim-unwrapped = inputs.neovim-master.defaultPackage.${config.nixpkgs.system};
 
   cfg = config.vim;
@@ -18,7 +20,7 @@ let
         ${(concatStringsSep
           "\n"
           (mapAttrsToList
-            (variable: value: "vim.g.${variable} = ${value}")
+            (variable: value: "vim.g.${variable} = ${luaFormat.generate value}")
             cfg.variables))}
 
         -- vim.lua from the NixOS configuration
@@ -104,13 +106,9 @@ in
   options.vim = with lib; {
 
     variables = mkOption {
-      type = types.attrsOf types.str;
+      type = types.attrsOf luaFormat.type;
       default = {};
-      description = ''
-        Extra global variables to add at the beginning of the vim configuration.
-
-        Remember to escape strings with single-quotes.
-      '';
+      description = "Extra global variables to add at the beginning of the vim configuration.";
     };
 
     extraPlugins = mkOption {
@@ -148,9 +146,9 @@ in
     vim = {
       wrappedPackage = myNeovim;
       variables = {
-        dominant_color = "'${config.theme.colors.dominant}'";
-        ripgrep_path = "'${pkgs.ripgrep}/bin/rg'";
-        fd_path = "'${pkgs.fd}/bin/fd'";
+        dominant_color = "${config.theme.colors.dominant}";
+        ripgrep_path = "${pkgs.ripgrep}/bin/rg";
+        fd_path = "${pkgs.fd}/bin/fd";
       };
     };
 
diff --git a/usecases/desktop/development.nix b/usecases/desktop/development.nix
index 5d9697f..fad2596 100644
--- a/usecases/desktop/development.nix
+++ b/usecases/desktop/development.nix
@@ -13,15 +13,30 @@ let
 
   inherit (pkgs.unstable.python3Packages) python-language-server;
 
+  luaFormat = inputs.self.lib.generators.lua { };
+
 in
 {
-  options = with lib; {
+  options = with lib; with luaFormat.lib; {
     vim.lsp = mkOption {
       description = ''
         Configure Neovim to use these LSP servers;
       '';
-      # TODO: change that to submodule with cmd, settings, capabilities, etc.
-      type = with types; attrsOf (listOf str);
+      type = with types; attrsOf (submodule {
+        freeformType = luaFormat.type;
+
+        options = {
+          capabilities = mkOption {
+            default = mkRaw "capabilities";
+          };
+          cmd = mkOption {
+            type = with types; listOf str;
+          };
+          on_attach = mkOption {
+            default = mkRaw "on_attach";
+          };
+        };
+      });
       default = { };
     };
   };
@@ -46,24 +61,18 @@ in
       ];
 
       variables = {
-        rust_analyzer_path = "'${rust-analyzer-unwrapped}/bin/rust-analyzer'";
+        rust_analyzer_path = "${rust-analyzer-unwrapped}/bin/rust-analyzer";
       };
 
       lsp = {
-        clangd = [ "${clang-tools}/bin/clangd" "--resource-dir=${clang}/resource-root" ];
-        elixirls = [ "${elixir_ls}/bin/elixir-ls" ];
-        pyls = [ "${python-language-server}/bin/pyls" ];
+        clangd.cmd = [ "${clang-tools}/bin/clangd" "--resource-dir=${clang}/resource-root" ];
+        elixirls.cmd = [ "${elixir_ls}/bin/elixir-ls" ];
+        pyls.cmd = [ "${python-language-server}/bin/pyls" ];
       };
 
       luaConfig = with lib; let
-        toLua = list: "{ ${concatMapStringsSep ", " (elem: "'${escape [ "'" ] elem}'") list} }";
-        lspconfigFor = name: cmd: ''
-          lspconfig["${name}"].setup {
-            capabilities = capabilities,
-            cmd = ${toLua cmd},
-            on_attach = on_attach,
-          }
-        '';
+        toLua = luaFormat.generate;
+        lspconfigFor = name: settings: "lspconfig['${name}'].setup ${toLua settings}";
         lspconfig = concatStringsSep
           "\n"
           (mapAttrsToList lspconfigFor config.vim.lsp);
-- 
cgit v1.2.3